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Philips Sonicare - Power Flosser & Toothbrush System 7000, HX3921 - White

Model: HX3921/40
SKU: 6483389
Sold byBest Buy

Customers are saying

Customers praise the Power Flosser & Toothbrush System 7000, HX3921 for its multiple cleaning modes and intensity levels, long battery life, ease of use, and overall design. The water pressure is adequate for most, and the SoniCare app is comparable to the Oral-B app. However, some customers have expressed concern over the fact that only one brush head is provided with the system.

Generated by AI based on customer reviews.
Features
  • More Effective Than Floss

    Up to 270% more effective than manual toothbrush and floss for healthier gums.

See all features
Specifications
  • Number of Tips Included
    3
    Reservoir Capacity
    20.28 ounces
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Reviews

Rating 4.5 out of 5 stars with 51 reviews

88% would recommend to a friend
Customers are sayingCustomers praise the Power Flosser & Toothbrush System 7000, HX3921 for its multiple cleaning modes and intensity levels, long battery life, ease of use, and overall design. The water pressure is adequate for most, and the SoniCare app is comparable to the Oral-B app. However, some customers have expressed concern over the fact that only one brush head is provided with the system.
This summary was generated by AI based on customer reviews.
  • Cleaning (12)
  • Water Pressure (8)
  • Battery Life (5)
  • Ease of use (5)
  • Intensity (5)
  • Brush Head (6)

Customer Images

The vast majority of our reviews come from verified purchases. Reviews from customers may include My Best Buy members, employees, and Tech Insider Network members (as tagged). Select reviewers may receive discounted products, promotional considerations or entries into drawings for honest, helpful reviews.

  • Rated 4 out of 5 stars

    Great water flosser for a sonicare owner

    Loving the water flosser and the sonicare toothbrush, the toothbrush was a replacement as we only use sonicare toothbrushes. The water flosser works great overall, compact foot print works well for our space and the reservoir is sufficient for a full mouth cleaning. The heads quickly click in and out for multiple people in a household to use.

    Posted by MatthewP

  • Rated 4 out of 5 stars

    Cleaner teeth and gums system

    I’ve used other electric toothbrushes over the years mostly from the other prominent brand. Getting this latest Philips Sonicare Power Flosser & Toothbrush System 7000 almost feels like getting my teeth and gums cleaned by a dental hygienist every day. I don’t know how it does it, but my teeth and gums feel so clean and fresh after each brushing plus flossing session that I’m never going back to using a regular manual toothbrush. The smooth sonic vibrations of the brush head almost create a feeling of gentle water pressure/swishing in your mouth, resulting in a very refreshing feeling. Make sure you close your mouth as much as possible, or you’ll be making a bit of a mess on your mirror. The setup and use is very simple and straightforward. There are 3 modes of operation intensity: Clean, Deep Clean and Gum Health. The brush head it came with is the new C3 style that is coated with a soft silicone edge on the outside, opposite to the bristles. The charger base is a bit bulky with the water tank and power flosser but the travel case with separate travel charger is a welcome addition. Compared to other brands I’ve used that consider your mouth to have 4 quadrants, with 30-second brushing of each section, this Sonicare divides your mouth in 6 quadrants with 20-second brushing intervals. That was confusing at first, but the manual is pretty clear about it. First time using a water flosser, so I didn’t know what to expect, other than be very careful and keep your mouth closed as much as possible or else you’ll splash everything like a kid with a water gun at a pool party. It will take lots of practice to get it just right, but I have a few months before my next dentist visit, so I’m hoping it will make a difference as I do have sensitive gums that bleed a lot if I don’t floss daily. The power flosser has 4 different modes and 10 intensity settings, so if you’re patient and persistent you’ll find the setting that works for you. The App installed on my Android phone and worked on the first try. I don’t usually bring my phone to the bathroom while brushing my teeth, but I do like usage information and statistics and reminders when to change the brush head. I wish they included more than just 1 brush head, as they could be pricey. I also wish there was a visual indicator, like a red light when you’re pushing the brush head too hard against your teeth/gums. Other than that, this is a very nice and comprehensive teeth and gum cleaning system.

    Posted by SUHD

  • Rated 5 out of 5 stars

    Winning Combination

    The Phillips Sonicare Power Flosser System is a perfect combination of a water flosser and a Sonicare electric toothbrush. I have used Sonicares for years and always have preferred them over other electric toothbrushes. Though I did own another brand water flosser in the past, I didn’t care for the loud noise or the operation (once on you had to hold the button on handle to not spray water). Phillips has improved on all of the shortcomings and includes a convenient charging base for the included Sonicare toothbrush. First thing I noticed was how you can turn it on and select your operation mode (clean, deep clean, sensitive, or massage) without shooting water everywhere. The flosser handle magnetically attaches to the base and the cord neatly coils into the unit when not in use. Operation is very quiet, yet powerful and easily adjustable on the fly. It was simple to find a setting that worked well while accommodating my sensitive gums. While they include 3 nozzles to customize the flosser, I found the Quad Stream to provide the best performance. The pulse wave feature ramps the flosser pressure up and down chronically to help guide you from tooth to tooth, though I found myself staying in some hard to clean areas for multiple “cycles”. I am not sure it will completely eliminate the need to floss periodically with traditional filament, but it does a pretty good job and is far more convenient and easier on my gums. The included Sonicare is a really nice toothbrush with all of the features you would expect. The toothbrush offers 3 cleaning modes and 3 power levels which offer a customizable cleaning experience. Operation was the familiar 30 second quadrant cleaning I was accustom to but it may be slightly quieter and stronger than my old handle. Though only 1 brush head is provided, Phillips does include a travel case and an extra charger that is separate from the power flosser base. Overall it is a really nice kit that provides everything you would need to improve and maintain your oral health.

    Posted by PeboQuattro

  • Rated 4 out of 5 stars

    Interesting Approach to Oral Hygiene

    INTRODUCTION The Philips SoniCare toothbrush combines regular brushing with “sonic” vibrations to help remove food and plaque. If not enough, the kit includes a powered flosser with its own pump to help blast any stubborn remnants from between your teeth, making for healthier gums and hopefully less time in the dentist’s chair. USE Initial use for this kit is quite simple. Place the toothbrush on the charger, fill the reservoir with water and dig out all the brush heads and flossing wands and put them all in their proper containers. After the toothbrush charged for approximately 3 hours, it was ready for use. Philips has joined the bandwagon on packing more and more tech into something that I thought never really needed it. Their new line of toothbrushes and gum care products are all Bluetooth enabled. A download from the Google Play Store or Apple App Store gets the SoniCare app and with an account creation, links your toothbrush to the phone. The SoniCare app is much like the Oral-B app. It offers you a way to keep track of your toothbrush (and update its firmware), coaches you on your brushing, including time and pressure applied, days left until the head needs replaced, and even allows you to input appointments for the dentist. While I’m not sure of the overall necessity for an app for a toothbrush (something I also questioned with the Oral-B), the SoniCare app did work without issue on both my Android and iOS devices. Good work Philips! Those of us that have used Oral-B products for years will find the SoniCare experience quite unique. The way the brush operates to clean your teeth is much different than the Oral-B. The combinations of movement and pulses feels awkward at first and does take some time to feel “normal”. The powered water flosser is a different story. I have some time still ahead of me to master that. The first few times I used it, I wound up laughing more than actual flossing. The pump on the water flosser is quite powerful. Powerful enough to shoot water across the bathroom for several feet. Ask me how I know. You have to make sure you have that flosser in the correct position before using the trigger or yourself, the vanity, and bathroom will all get a good bath. It was humorous the first few times, aggravating the next few times. I’m sure once I get better at it, it will be less messy, but you gotta be on your A-Game when you first give it a go. NEGATIVES The only real issue that I can think of is that water flossing can be very messy and you can only go a few seconds before your mouth fills up and you need to spit it all out. I have attempted to use the flosser with my mouth open, but I either need more practice, or it can’t be done as water was shooting around the bathroom like someone unleashed Old Faithful. CONCLUSIONS The SoniCare toothbrush and water flosser do seem to do a very good job at cleaning your teeth. My teeth did feel much cleaner flossing after a meal. That is, when I wasn’t spraying water across the bathroom. I have to admit though, the inner child in me found it to be an awesome, secret squirt gun. Not that I would participate in such juvenile behavior. How well it will performs compared to my existing Oral-B toothbrush in the long run is yet to be seen. But, my initial few uses with the SoniCare have been impressive and positive and I feel the powered flosser does make a tangible difference in how my teeth and gums feel. Recommended.

    Posted by NAMO

  • Rated 5 out of 5 stars

    Upgrade To Oral Hygiene

    The Phillips Sonicare Power Flosser & Toothbrush System has many neat and useful features for dental hygiene. It helps provide dentistry type care for your teeth at home! I loved how the Sonicare system includes so many accessories for home or when traveling. The system includes the Power Flosser 7000, a 600ml water reservoir, three different water flossing nozzles, a nozzle case, the ExpertClean 7300 Toothbrush, a toothbrush head plastic cover for when not in use, a travel carrying case, a travel charger/dock, and a carrying case where 2 brush heads fit (in case you and your partner are traveling together, it saves you space). Pretty much everything you can think of to take on the go too! When using the Power Flosser, you have three different water flossing nozzles: the Quad Stream nozzle, comfort nozzle, and standard nozzle. The Quad Stream nozzle shoots out water in an "X" shape and is meant to cover more tooth area quicker. The comfort nozzle is meant for sensitive gums and the standard nozzle for regular, day to day cleans. The Power flosser itself also has 4 modes of flossing (clean, deep cleaning, sensitive, and massage) and 10 different levels of water pressure intensity. One of my favorite modes is the Deep Clean mode; it pulses water as you move through each tooth. Massage mode helps massage your gums for a relaxing, clean feel and the sensitive mode is for people who would like a gentler clean. I would say to definitely begin at a lower water intensity and then move the level up as your teeth and gums get used to the power flossing. Another neat feature I liked about the flosser is the magnetic dock. After flossing, the flosser can easily be placed back onto the magnetic dock and powers itself off. One thing to note, if this is your first time using an electric toothbrush or flosser, it will take some getting used to and there is a small learning curve. However, after you notice the results of your oral hygiene (like I did initially), you will see how switching to electric was the best decision for your oral hygiene you could've made. The ExpertClean 7300 toothbrush comes with 3 different brushing modes - clean, gum health, and deep clean+. With each mode, you can also change the level of intensity from 1 to 3. Like the power flosser, it would be good for you to begin at a lower intensity as your mouth and teeth become accustomed to the electric toothbrush sensation. You can turn on the toothbrush by pressing the power button or simply by pressing the button underneath it to select the brushing/clean mode. To adjust the intensity, select a brushing mode, press the power button, then hold the brushing mode button until your desired intensity is selected. Also, I recommend brushing at a 45 degree angle, as the manual recommends, and not at a straight 90 degree angle. This will ensure you brush properly, reducing vibration for a more comfortable clean without hurting your teeth or gums. After you finish brushing, you can easily charge it by placing it on the small docking station. Throughout my time using it, I noticed the battery lasted under an hour of total use. While this is not a whole lot of time, I can't imagine anyone attempting to brush their teeth for extended periods of time and not going back to replace their toothbrush on the handy dock. Lastly, one of the coolest features this Sonicare system has is the Bluetooth functionality and the Sonicare app. You are able to track your brushing schedule, how many uses for your toothbrush head you have left before it's recommended to change out, update the toothbrush firmware, and more. Other than the learning curve and taking some time to get used to, another downside is how messy it can get when using both the toothbrush and flosser system. For brushing, it's necessary to keep your mouth open to ensure a proper clean, but can also cause toothpaste to fly from the toothbrush. As for the Power Flosser, water can be sprayed from your teeth to your surroundings and across the bathroom if not used carefully. Overall, the Phillips Sonicare Power Flosser and Toothbrush System is a very nice upgrade to your standard manual toothbrush that also brings an upgrade to your oral hygiene. I definitely recommend it for someone looking into electric toothbrushes and would like a change in their oral hygiene. While it's up to the person to completely make the change in their oral hygiene, this system definitely helps get you moving in the right direction.

    Posted by MoGJ

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Pros for Philips Sonicare - Power Flosser & Toothbrush System 7000, HX3921 - White
Water Pressure, Ease of use, Cleaning, Battery Life, IntensityThere were no pros for this productEase of use, Water Pressure, Overall Performance, Noise Level, PowerEase of use, Water Pressure, Cleaning Performance, Flossing
Cons for Philips Sonicare - Power Flosser & Toothbrush System 7000, HX3921 - White
Brush HeadThere were no cons for this productThere were no cons for this productBrush Head Size, Battery Life, Noise Level, Cord, Design

Specs

Questions & Answers
  • What is the pressure force it has?

    Hello! Unlike traditional measurements such as PSI or flow rate, our Power Flosser focuses on the principles of force and momentum, emphasizing a clean and deep clean experience. Our primary mode, Clean and Deep Clean, operates with a consistent water pressure throughout, ensuring a thorough and effective clean for your teeth.

    Answered by Answered by Philips
    Answered by Philips response
  • I would like to buy the following item: philips sonicare HX3921 (power flosser with toothbrush). Could you please tell me if the electrical socket is a european one ?

    Hello there! The Philips Sonicare Power Flosser & Toothbrush System 7000 (HX3921/40) usually comes with a universal voltage charger (100-240V). However, the plug type may vary by region.

    Answered by Answered by Philips
    Answered by Philips response
  • Can this be used by more than 1 person??

    Hello! Yes. The Philips Sonicare Power Flosser HX3921 can be used by more than one person if you purchase additional interchangeable nozzles. Each user should have their own nozzle for hygienic reasons. The flosser is designed for easy nozzle replacement, so different nozzles can be swapped as needed.

    Answered by Philips
    Philips response
  • What makes the Quad Stream Tip special?

    The Quad Stream Tip creates four streams of water to effectively clean between teeth and along the gum line.

    This question and answer was generated by AI based on customer and product data.
  • What is the reservoir capacity of this power flosser?

    The reservoir has a capacity of 20.28 ounces.

    This question and answer was generated by AI based on customer and product data.
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